Finding the Fourth Proportional to 96,085.81, 144,133.98 and 39,931.57

Step by Step Solution

1. Step 1: Write the proportion equation
   96,085.81 : 144,133.98 = 39,931.57 : x
2. Step 2: Convert to fraction form
   96,085.81/144,133.98 = 39,931.57/x
3. Step 3: Cross multiply
   96,085.81x = 144,133.98 × 39,931.57
4. Step 4: Simplify right side
   96,085.81x = 5,755,496,111.75
5. Step 5: Solve for x
   x = 5,755,496,111.75/96,085.81
6. Step 6: Final answer
   x = 59,899.54